Package org.eclipse.hono.util

Class MapBasedExecutionContext

java.lang.Object

org.eclipse.hono.util.MapBasedExecutionContext

All Implemented Interfaces:

ExecutionContext

Direct Known Subclasses:

MapBasedTelemetryExecutionContext

public abstract class MapBasedExecutionContext
extends Object
implements ExecutionContext

An execution context that stores properties in a Map.

Constructor Summary

Constructors

Constructor	Description
MapBasedExecutionContext(io.opentracing.Span span)	Creates a new MapBasedExecutionContext instance.

Method Summary

Modifier and Type	Method	Description
<T> T	get(String key)	Gets the value for a key.
<T> T	get(String key, T defaultValue)	Gets the value for a key.
io.opentracing.SpanContext	getTracingContext()	Gets the OpenTracing context that is used to track the processing of this context.
io.opentracing.Span	getTracingSpan()	Gets the OpenTracing root span that is used to track the processing of this context.
void	put(String key, Object value)	Sets a value for a key.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

MapBasedExecutionContext

public MapBasedExecutionContext(io.opentracing.Span span)

Creates a new MapBasedExecutionContext instance.

Parameters:

span - The OpenTracing root span that is used to track the processing of this context.

Throws:

NullPointerException - If span is null.

Method Detail

get

public final <T> T get(String key)

Description copied from interface: ExecutionContext

Gets the value for a key.

Specified by:

get in interface ExecutionContext

Type Parameters:

T - The type of the value.

Parameters:

key - The key to get the value for.

Returns:

The value or null if the key is unknown.

get

public final <T> T get(String key,
                       T defaultValue)

Description copied from interface: ExecutionContext

Gets the value for a key.

Specified by:

get in interface ExecutionContext

Type Parameters:

T - The type of the value.

Parameters:

key - The key to get the value for.

defaultValue - The value to return if the key is unknown.

Returns:

The value.

put

public final void put(String key,
                      Object value)

Description copied from interface: ExecutionContext

Sets a value for a key.

Specified by:

put in interface ExecutionContext

Parameters:

key - The key.

value - The value.

getTracingSpan

public final io.opentracing.Span getTracingSpan()

Gets the OpenTracing root span that is used to track the processing of this context.

Specified by:

getTracingSpan in interface ExecutionContext

Returns:

The span.

getTracingContext

public final io.opentracing.SpanContext getTracingContext()

Description copied from interface: ExecutionContext

Gets the OpenTracing context that is used to track the processing of this context.

Specified by:

getTracingContext in interface ExecutionContext

Returns:

The context or null if no tracing context is set.